[PHP] determining caller of function

[Thomas Peri]

Is there a way, *other than using debug_backtrace(), which has a bug*, 
to determine from inside what class and method the current function was 
called?  For example:

class Foo {
   function fubar() {
      // I want to be able to determine that the function from which this
      // method was called in this example is the "go" method of the 
class "Bar".
   }
}
class Bar{
   function go() {
      $f = new Foo();
      $f->fubar();
   }
}
$b = new Bar();
$b->go();

--
Thanks,
- Thomas
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